Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.9 - Linear Inequalities and Absolute Value Inequalities - Exercise Set - Page 138: 106

Answer

About 5.5 years.

Work Step by Step

Observe the balloon with caption "Commitment". It points almost exactly at the point on the graph where this happens. The x-coordinate of this point is about 5.5, (after which, the green graph exceeds y=9, the maximum for passion.)
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